GANOIDEI, TELEOSTEI. 
Pisces 19 
Weight, (c) On the function of the serrated appendages of the throat 
in Amia. 
Pterichthys. Cope (b) has published.some notes on the correct posi¬ 
tion of this genus, which he refers to the Tunicata ! p. 289, woodcut. 
Dinichthys newberryi, sp. n. (foss.), Clarke, p. 17, pi. i. fig. 1, Genesee 
Shales of Ontario County. 
Pteraspis. Notes on the structure of the shield ; Claypole, p. 51, woodcut. 
Palceaspis , g. n. (foss.), near Pterasjns, for P. americana and bitrun- 
cata, spp. nn. • id. p. 62, woodcut, Upper Silurian of Pennsylvania. 
Acanthodes (?) pristis, sp. n. (foss.), Clarke, p. 42, Naples beds of 
Ontario County. 
CrassopTiolis magnicaudatus , Cope (foss.). Notes on a skull probably 
beloDging to this species, and nearly allied to Polyoclon , from the Eocene 
Green River shales; Cope, (c) p. 1090. 
Mesodon gigas, Ag. Notes, and otolith figured; Bassani, (b) p. 158, 
pi. ii. figs. 10 & 11. 
Lepidotus maximus , Wagner (foss.), pp. 80 & 154, figs. 12 & 13, pallia- 
tus, Ag., pp. 81 & 157, figs. 14-16. Notes, and otoliths figured ; id. (a & b) 
pi. ii. 
Dactylolepis, g. n. (foss.), apparently allied to Lepidotus , for D. gogolin- 
ensis , sp. n. ; Kunisch, p. 588, Trias of Gogolan, Upper Silesia. 
Polygnathus dubius, Hinde (foss.), from the Devonian of Ontario 
County ; Clarke, pp. 17 & 40. 
Paleoniscus devonicus , sp. n. (foss.), id. t. c. pp. 20 & 41, pi. i. figs. 2-6. 
Amia scutatci , Cope (foss.), pi. lx. fig. 1, and dictyocephala , Cope, pi. lix. 
fig. 1, p. 745, described and figured by Cope, (a), Tertiary of the United 
States. A. clava : on its osteology ; Shufeldt. 
Pappichthys sclerops , Cope (foss.), p. 57, fig. 1, Icevis, Cope, p. 58? 
figs. 2-11, plicatus, Cope, p. 59, figs. 12-19, pis. iii. & iv. figs. 1-5, and cor- 
soni , Cope, p. 60, pi. iv. figs. 21-36, described and figured ; id., from the 
Tertiary of the United States. 
Pelargorhynchus dercetiformis , sp. n. (foss.), Marck, p. 261, Upper 
Chalk of Westphalia (PLoplopleuridce of Gunther). 
Heterolejndotus grandis, sp. n. (foss.), Davis, p. 293, pi. vii., Lias at 
Lyme Regis. 
TELEOSTEI. 
Agassiz & Whitman (b) continue the papers on young stages of Osseous 
Fishes, commenced in 1877 by Agassiz. 
Barrett. On the liver of a Haddock in which a Sand-eel was partly 
imbedded. 
Brook, (a) On the origin of the hypoblast in pelagic Teleostean ova. 
-. (b) On the development of Motella mustela. 
-. (c) On the development of the Herring. 
Cunningham, (a) On the relations of the yolk to the gastrula in 
Teleosteans. 
-. (b) On the nature and significance of the structure known as 
Kuppfer’s vesicle in Teleostean embryos. 
